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, HYDRAULIC GRA EL ELEVATOR.

N0. 351.,969 4 Patented No v.'2,18 86.

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L; a; w. W. EASTLIOK. HYDRAULIC GRAVEL ELEVATOR.

Patented Nov. 2,1886.

UNITED STATES PATENT .OFFIcs LAFAYETTE EASTLIOK AND \VILLlAlVLWEASTLIGK, OF QRO FINO, CAL.

HYDRAULIC GBAVEL-ELEVAT'OR.

SPECIFICATION forming part of Letters Patent No. 351,969, dated November2, 1886.

Application filed April 15, less.

To aZZ whom it may concern:

Be it known that we, LAFAYETTE EASTLICK and WILLIAM WA LL-AcE EASTLICK,of Oro Fino,Siskiyou countyState of California, have invented anImprovementin Hydraulic Gravel- Elevators; and we hereby declare thefollowing to be a full, clear, and exact description of the same.

Our invention relates to the class of gravelelevators used in hydraulicmining; and our invention consists in an open top-chute set at theproper angle, its upper. end being arranged to discharge into the mainflume, and in one or more branch water-pipes having nozzles enter- Thenecessity for this elevation requires but the briefest explanation;

When the beds of auriferons gravel are low,

or are so situated that they cannot be washed down directly into themain. flume, it is obvious that some disposal must be made of thematerial. It cannot be left in the workings, as it would cover them up,and therefore it must be carried away from'them to the main flume,which, when higher than the beds, requires the elevation of thematerial. This object isusually efiected by a closed-tight pipe, theupper end being in corhmunication with the main chuteand the lower endwith the pit or hole in the bed into which the material is washed. Ahydraulic nozzle connected with a branch pipe containing water underpressure is let into the lower end of the elevatorpipe, and the forceof. the stream is such that itsucks in the material behind it, on theprinciple of an in ector, and carries it up through the pipe.

We propose to do away'with the tight-closed pipe and use anopen-topchutawhich is rendered effective as an elevator both by reasonof its construction and the arrangement of the hydraulic nozzle ornozzles in communication with its lower end, whereby thematerial whichis fed to the chute is forced directly up by the Serial No. 199.030. (Nomodel.)

' stream, not by suction, as is the case with the closed pipe, but bydirect impact.

Referring to the accompanying drawings for a more-complete explanationof our invention, Figure 1 is a perspective view of our elevator andhydraulic nozzles. Fig. 2is a view showing its use in the workings.

The elevator-chute A is composed of two sides and a bottom, there beingno top, so that the chute is open above. The interior walls both of thesides and bottom are lined with separate heavy bloc-ks a, bolted to thechute in such a manner thateach may be removed when worn for thesubstitution of another. The chute is th erefore p racticallyindestructiblea very desirable result, as it is subjected to greatfrictional wear and tear. The whole chute is properly braced to increaseits strength. B is a nozzle let into the lower end of the chute throughacross-beam, b, which serves as arest for the feed-flume, hereinafterdescribed. The nozzle is on the end of the branch pipe 0.00mmunicatingdirect-1y or indirectly with the elevated water-source. p

In some cases we may use a second or supond branch pipe, E. The nozzle Dpasses under the chute and opens into it at a point higher up than thenozzle B. When we use this nozzle,we make the floor or bottom of the sothat an. offset, a, is formed through which the nozzle enters.

In Fig. 2, F is the bed. G is the feed-flume into which the material iswashed. This flu me rests within the-lower end of the'elevatorchuteA,and discharges its material therein immediately in front of nozzle B.H is the main flume.

The elevator-chute is set at an inclination,

bed F, and its upperend being arranged to discharge its contents eitherdirectly into the flume .H oragainst a cut in a bank, I, from which itflows back again into the flume. The force of the stream from nozzle 13(which, in our practice is a three-inch one connected with a fifteeninchbranch pipe, 0, the water being under head of about two hundred andseventy-five feet) is so great that the material fed from flume G isforced directly by the impact of the stream upthe elevator-chuteintoplementary nozzle, D, connected with a secchute higher or thicker at itslower portion,

say, of forty degrees, its lower end being in the the llumc H or againstthe cut in bank I.

This direct impact force enables us to use the open-top chute for anelevator instead of the closed pipe, thead vantage being that the latteris much more costly and wears out quickly with no chance to repair it aswith our chute.

if the elevation be too great for the effective operation of the singlenozzle B, we use the supplementary nozzle D in connection with it, sothat the material meets with a fresh impetus on its way up.

Having thus described our invention, what we claim as new, and desire tosecure by Letters Patent, is

1. The open-top hydraulic gravelelevator chute A, having its lower endin the workings and supplied therefrom and its upper end incommunication with the main flume above. and a hydraulic nozzlereceiving water under pressure and arranged at the base of the chute, sothat the material is carried up the chute by the direct impact of thestream, substantially as herein described.

2. The open-top hydraulic gravel-elevator chute A, having its lower endin the workings and supplied therefrom, and its upper end incommunication with the main. tlume above, and hydraulic nozzlesreceiving water under pressure and arranged in the bottom of the chuteat different elevations, whereby the material is carried up the chute bysuccessive direct impacts of the stream, substantially as hereindescribed.

The open-top hydraulic gravel-elevator chute A, having its lower end inthe workings and supplied therefrom and its upper end in comm unicatiouwit-h the main fltune above,

said chute having the separate blocks (1 as a lining for its walls, incombination with a hydraulic nozzle receiving water under pressure andarranged in the bottom of the chute, so that the material is carried upthe chute by the direct impact of the stream, substantially as hereindescribed.

4. The main flutne H above, the feed-flame G in the workings below, andthe branch pipe O, receiving water under pressure, in combination withthe open-top elevator-chute A, having its lower end in communicationwith the feed-flunte G and its upper end in communication with the mainflume H, and the nozzle B on the branch pipe C, and entering the lowerend of chute, so that the material is carried up the chute by the forceof the stream from the nozzle, substantially as herein described.

5. The main flume H above, the feed-flume Gin the workings below, andthe branch pipes O and E, receiving water under pressure, in combinationwith the open-top elevator-chute A, having its lower end incommunication with the 'l'eetH'luuie G and its upper end incommunication with the main tlumell, the nozzle B on the branch pipe 0,eutcriugthelower end of the chute, and the nozzle D on branch pipe E,entering the bottom of the chute at a point higher up, substantially asherein described.

In witness whereof we have hereunto set our hands.

LAFAYETTE EASTLTGK. WILLIAM W. EASTLICK. Witnesses:

A. F. DAVIDSON, Gizo. W. RUSSELL.

